阅读下面短文，从短文后所给的A、B、C、D四个选项中， 选出可以填入空白处的最佳选项。

    My friend Samuel, who is a good runner, and I ran a 5K race last weekend. It was my first organized1. “You run ahead,” I said at the starting line. “You2?” he asked. “Go!” I said. “I'll see you at the3”

    Samuel took off, strong and full of energy. My4 hit the ground in a familiar pattern, and I5 it to the half-way point. My legs started to6 and my back hurt. 7, I wanted to give up but my spirit told me not to. I started to think I should have8 a shorter goal as the great distance was too much for me. I began to9 deciding to run the 5K race. I thought about all this while running. The road seemed very10.

    11 I ran along, my feet felt like lead(铅). It seemed as if I would 12 make it. I was so tired that I couldn't move a step further. I tried to13 myself by sayings. Some words appeared in my mind. They were “Do 14 by halves” and “To persevere(坚持) means victory”. They were 15 and they filled me with fresh energy. Anyway, I wouldn't quit. I 16 along. I eventually saw the white tent by the finishing line.

    Samuel was at the finishing line. When I 17 at the end, he put his arm around my shoulders and18 his hand for a high-five.

    I realized that19 you never give up, the goal you set can be reached. Above all, you just have to be20 and take one step at a time.

    In February of 2005, Phil Belfiore was teaching one of Robert Frost's poems “Stopping by Woods on a Snowy Evening.” He liked it that he recorded it on his home answering machine, which would lead to one of the most unusual1of his life.

    When Phil returned from his vacation, he listened to his voice 2  One gentleman caller 3for dialing the wrong number. But, he added, he'd really 4the poem. Phil laughed and thought nothing more of it— 5the phone rang a few days later.

    Phil 6John's hollow voice immediately, who said sorry to7, but he was calling to hear the8again. The two men talked. It turned out that his brother's phone number was9from Phil's by one digit(数字), thus the wrong number. Before hanging up, Phil told John to 10anytime, whether to hear the poem or just to have a chat.

    That was 11 years ago. They've spoken on the phone a few times a month ever since. It is John who is 11the starter of most calls. However, Phil will ring if a long while has passed. Not 12  John has been in poor health. His special voice is just the 13of some heart trouble. They seem to always 14when there's been a big sports event. The man like to discuss 15most. John will also 16Phil on his life. Slowly, their conversations have grown much more 17  When asked what drew them together, Phil18that they were old friends. They planned to meet twice, but circumstances went19them. Their friendship is based on the simple act of picking up the phone. “My best friend is someone I've not yet met 20 ” says John. It's as simple as that.

A Good Man

    It's a late Saturday afternoon in early March, and I am sweating in search of the only gift my son wants from Los Angeles: a 1 to the homes of the stars such as Brad Pitt and Jet Li.

    A cheerful taxi driver says, “No problem. Map sellers are everywhere!” When the taxi stops, a fellow 2 with a thin folded sheet and says: “Ten dollars.”

    Ten dollars! With absolute 3I inform him, “That's too much.” The map man leaves. I begin walking, certain I'll find a (an)4 star map soon.

    I am 5. There's hardly anybody on the street. There don't seem to be many real stores, just cars and bars. No maps. No stars. Blocks pass. The sun begins to sink. At the edge of West Hollywood6fellow wanders ahead, selling star maps to some teenage girls.

    Ten dollars7. Forget it. My son will 8.

    That night, I call my wife. “Did you get one of those maps to the stars? He's been talking about 9else.”

    This10is hard to ignore. It's late. At all-night markets: no maps. I head back to the hotel. Morning is coming. There will be one last11. After I check out, I take a taxi. But at nine in the morning, map sellers are 12 to be found.

    “You know,” says the driver, “The guys with the maps just aren't up yet!” He's right.

    “Forget it. Let's go to the airport.”

    “Well,” says the driver, “I could 13 you one if you like.”

    Sure. Trust this guy? I might as well throw cash onto the freeway. But exiting the taxi, I14 my last chance. I hand him $13 and my business card. Three weeks pass. I've15 on the star map. My son has stopped mentioning it.

    Then one afternoon, sticking out from under piles of flyers, there it is: a big white envelope. There is a small note. I can hardly read it16 I make out a few phrases一“forgive17 “taxi's been down” and, finally, “here's map for your son.” There's no return address. It's signed, “kind regards, M.”

    I hold the note in my hand18 what my son said to me when I got back from Los Angeles.

    “Did you meet any 19 Dad?” he asked.

Now I know what to tell him.

    “Yes, I did. I met a guy named M.”

    If you never 20 anybody, you'll never find the good guys.

    When I was a young boy, my family was very poor. I would often help do something for the neighbors to 1 a little pocket money.

    One day I 2 on the door of an elderly woman and asked 3 she needed me to clean the yard. She asked why I was not in 4 and I showed her my worn 5, which no longer kept me warm. She 6 me to work in the yard. When I finished, she looked at me and said, “I suppose you want to be 7 now.” She then 8 a jar filled with dollar bills and said, “I'm glad you've done a 9 job today but that is not something you should be doing again. I want you to 10 new clothes and get back to school. I also want you to come back to 11 me with your report card and I will 12 you when I see you have worked hard and have some good 13. Now reach out your little hands and take out as much 14 as you can.”

    I put my hands in the jar and 15 so much money that it was 16 for me to buy what I badly needed. Later, I returned several times to see the woman and she did just as she 17. She looked at my report card and gave me a handful of dollars and some delicious food every time I 18 her that I had an “A”.

    I was twelve years old when I moved from that neighborhood. I will never forget the huge 19 this wonderful lady made over my life with her 20. This is something I hope to do myself in this lifetime over and over again.

    My mother and her family kept information about my father and his family a secret from me for over half a century. In 2010 I began to 1 my father through Ancestry.com. However, I learned he had 2 cancer on August 6, 1999 in a hospital in Dallas, Texas.

    When I got my father's death 3, the medical examiner told me because my father had no 4 around the city, they buried him in a body bag in a(n) 5 grave in an old cemetery.

    I knew my father 6 in WW2 so I decided to work on getting his remains 7 to my state to be buried in our national cemetery. From 2011 to 2017 I kept working on 8 my debt from a divorce and increasing my 9 score so someday I could get a personal loan.

    That certificate of 10 service proved my father served 43 months in WW2 in the USA Army Air Force fighting the Nazi's. I still did not have the money 11. In July of 2018 a bank approved a $10, 000 personal loan so I had a funeral director 12 a permit to exhume my father. After 4 months of 13 I asked Senator Brown for help again in November. Six days after he contacted Texas officials a permit was 14.

    On July 9, 2019 an airplane will 15 at the Cleveland Hopkins International Airport 16 I will be finally 17 with my father and touch his metal casket and the missing piece of my heart will be 18.

    On January 10, 2019 the Ohio Patriot Guard Riders will escort my father's hearse through my 19 to be buried with honors in our states National cemetery and one day in January Senator Brown will have an American Flag 20 over our Nation's Capital to honor my father.

    If you never give up one day your dream will become a reality.

Adults check their phones, on average,360 times a day, and spend almost three hours a day on their devices in total. The problem for many of us is that one quick phone-related task leads to a quick check of our emails or social media feeds, and suddenly we've been sucked into endless scrolling.

It's an awful circle. The more useful our phones become, the more we use them. The more we use them, the more we lay neural（神经的） pathways in our brains that lead to pick up our phones for whatever task is at hand-and the more we feel an urge to check our phones even when we don't have to.

What we do know is that the simple distraction of checking a phone or seeing a notification（通知）can have negative consequences. This isn't very surprising; we know that, in general, multitasking does harm to memory and performance. One of the most dangerous examples is phone use while driving. One study found that merely speaking on the phone, not texting, was enough to make drivers slower to react on the road. It's true for everyday tasks that are less high-risk, too. Simply hearing a notification "ding" made participants of another study perform far worse on a task-almost as badly as participants who were speaking or texting on the phone during the task.

It isn't just the use of a phone that has consequences-its me re presence can affect the way we think.

In one recent study, for example, researchers asked participants to either put their phones next to them so they were visible（like on a desk）, nearby and out of sight（like in a bag or pocket）, or in another room. They were found to perform far better when their phones were in another room instead of nearby-whether visible, powered on or not.